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Author Topic: Back firing  (Read 1807 times)

Offline Screech16v

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Back firing
« on: 03 September 2013, 19:21 »
My agu will backfire in between gear changes sometimes, normally after sitting at lights going from 1st to second it will pop loud, sounds ace but is it ok ,its only done this since fitting a tip.
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Offline mcgee9t2

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Re: Back firing
« Reply #1 on: 03 September 2013, 20:44 »
proberbly just in the exhaust...

are you experiencing any loss of power when this happens?
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Offline Screech16v

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Re: Back firing
« Reply #2 on: 03 September 2013, 20:56 »
No loss of power just a loud pop out back possibly flames too when changing gear,possible over fueling ?no smoke though
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Offline dom

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Re: Back firing
« Reply #3 on: 03 September 2013, 22:30 »
Quote from: Screech16v on 03 September 2013, 20:56
No loss of power just a loud pop out back possibly flames too when changing gear,possible over fueling ?no smoke though

The pop is just unburned fuel in the exhaust, I wouldn't worry about it mine does it when I'm giving it the beans, spits flames as well :grin:
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Offline gazareth

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Re: Back firing
« Reply #4 on: 03 September 2013, 22:46 »
but you wouldn't want unburnt fuel in the exhaust???
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Offline dom

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Re: Back firing
« Reply #5 on: 03 September 2013, 22:50 »
If it's only on gear changes it's fine
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Offline Screech16v

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Re: Back firing
« Reply #6 on: 03 September 2013, 23:00 »
Yes its only on gearchange and theres no cat to worry about .suppose it will be ok then.
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Offline Scott D

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Re: Back firing
« Reply #7 on: 03 September 2013, 23:52 »
could be a vacuum leak from the TIP clip not being tight enough
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2003 1.8T GTI 180 - APR Stage I, S2000 Filter, R-Tech Supersize TIP, Bilstein B12 Suspension, 18" OZ Superleggera, Recaro Heated Leathers, US Spec Rear Lights, N249/SAI/PCV Delete

1.8T AUQ - 241bhp & 286 ft-lb
R-Tech Map, Forge FMIC, SFS Oversized TIP, Ported Manifold, Milltek Turboback non res exhaust, Forge 007p, N249 & N112 delete, SAI delete, S2000 Air Filter, Sachs clutch & Lightweight Flywheel

Offline mcgee9t2

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Re: Back firing
« Reply #8 on: 04 September 2013, 08:14 »
im guessing its cause theres no cat...

mine pops like a b!tch when i let off and get to low revs and sometimes when changing gear...
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